fixed webpack#2011

sokra · sokra · commit c501b5d5af21 · 2016-02-08T09:54:13.000+01:00
diff --git a/lib/optimize/UglifyJsPlugin.js b/lib/optimize/UglifyJsPlugin.js
@@ -93,7 +93,7 @@ UglifyJsPlugin.prototype.apply = function(compiler) {
 						ast.figure_out_scope();
 						ast.compute_char_frequency(options.mangle || {});
 						ast.mangle_names(options.mangle || {});
-						if(options.mangle.props) {
+						if(options.mangle && options.mangle.props) {
 							uglify.mangle_properties(ast, options.mangle.props);
 						}
 					}

Original file line number	Diff line number	Diff line change
`@@ -93,7 +93,7 @@ UglifyJsPlugin.prototype.apply = function(compiler) {`
`93`	`93`	`ast.figure_out_scope();`
`94`	`94`	`ast.compute_char_frequency(options.mangle \|\| {});`
`95`	`95`	`ast.mangle_names(options.mangle \|\| {});`
`96`		`- if(options.mangle.props) {`
	`96`	`+ if(options.mangle && options.mangle.props) {`
`97`	`97`	`uglify.mangle_properties(ast, options.mangle.props);`
`98`	`98`	`}`
`99`	`99`	`}`